Have some industrial rapeseed instead, goy.
(media.scored.co)
No. It is not mostly the extraction process, it's the toxicity of the product itself. I own several bug sprays where the 'active ingredient' is rapeseed oil. One rapeseed is like a grain of sand. Imagine your ancestors crushing millions of them to add to every single item they ate. They didn't, and neither should you. In the UK almost every fucking item for sale in a supermarket that isn't a raw food is 20% rapeseed oil or higher